As clean energy scales up, experts say outdated grids and poor planning are turning local outages into global wake-up calls.

Portuguese authorities have announced measures to strengthen the country's electricity system after the April 28 blackout ...

Spain's second-largest oil refiner Moeve, formerly known as Cepsa, said on Monday the massive power blackout that hit Spain ...

Grid failures like the one experienced in Spain and Portugal are dangerous—and they’re not an isolated glitch. Such events ...

Spanish power utility Endesa reported on Tuesday a 30% rise in first-half net profit to 1.04 billion euros ($1.20 billion), ...

Spain's second-largest oil refiner Moeve, formerly known as Cepsa, said on Monday its adjusted net profit fell 19% in the ...

Spain lost 15 gigawatts of electricity — or about 60% of its supply. Portugal, whose grid is connected to Spain's, also went down. Only the countries' island territories were spared.

Spain lost 15 gigawatts of electricity — or about 60% of its supply. Portugal, whose grid is connected to Spain’s, also went down. Only the countries’ island territories were spared.

Spain lost 15 gigawatts of electricity — or about 60% of its supply. Portugal, whose grid is connected to Spain's, also went down. Only the countries' island territories were spared.

Spain lost 15 gigawatts of electricity — or about 60% of its supply. Portugal, whose grid is connected to Spain's, also went down. Only the countries' island territories were spared.

After Spain's blackout, questions about renewable energy are back The Asco I nuclear power station, center, is seen near houses in the small town of Asco, Spain in Tuesday, April 15, 2008.

Much as in October, Spain’s theatrical polarization is muddling the response, while shrouding the blackout’s root causes beneath a veneer of vacuous barb-trading among the two major parties.